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Microsoft Entra ID (formerly Azure Active Directory)

Microsoft Entra ID is a cloud-based identity and access management service.

Key Features

  • Single Sign-On (SSO): Access thousands of SaaS apps with one set of credentials.
  • Multi-Factor Authentication (MFA): Secure access with an extra layer of protection.
  • Conditional Access: Policies to control access based on signals (location, device, user).

Use Cases

  • Employee Identity: Manage user access to corporate resources.
  • B2B: Guest access for partners and vendors.
  • B2C: Customer identity management for your applications.

Key Concepts

  • Tenant: A dedicated instance of Entra ID.
  • Service Principal: An identity for an application or service (like a user ID for code).
  • Managed Identity: Automatically managed identity for Azure resources (no password management).
  • RBAC: Role-Based Access Control to manage permissions.